Kiebach, Ragnar; Pirou, Stéven; Martinez Aguilera, Lev; Bjørnetun Haugen, Astri; Kaiser, Andreas; Hendriksen, Peter Vang; Balaguer Ramirez, Maria; García-Fayos, Julio; Serra Alfaro, José Manuel; Schulze-Kuppers, Falk; Christie, Max; Fischer, Liudmila; Meulenberg, Wilhelm Albert; Baumann, Stefan(The Royal Society of Chemistry, 2022-02-01)
[EN] Oxygen transport membranes (OTMs) are a promising alternative to cryogenic air separation (ASU) or pressure swing adsorption (PSA) for oxygen production. Using these ceramic membranes allows producing high purity ...
García-Fayos, Julio; Lobera González, Maria Pilar; Balaguer Ramirez, Maria; Serra Alfaro, José Manuel(Frontiers Media SA, 2018)
[EN] Increased availability of methane from shale gas and stranded gas deposits in the recent years may facilitate the production of ethylene by means of potentially more competitive routes than the state-of-the-art steam ...
Catalán-Martínez, David; Santafé Moros, María Asunción; Gozálvez-Zafrilla, José M.; García-Fayos, Julio; Serra Alfaro, José Manuel(Elsevier, 2020-05-01)
[EN] The influence of fluid dynamic conditions on the oxygen transport through mixed ionic-electronic membranes was studied experimentally and numerically. A set of permeation experiments was performed in a wide range of ...
Represa Bullido, Álvaro(Universitat Politècnica de València, 2022-05-30)
[ES] La presente tesis doctoral se enmarca en el ámbito de la producción de hidrógeno renovable, y en el estudio metodologías de intensificación de procesos para la producción de hidrógeno mediante reactores de membrana y ...
García Fayos, Julio(Universitat Politècnica de València, 2017-09-01)
The present Thesis is focused on the development of ceramic membranes for the production of O2, as well as their use in several industrial applications (e.g. power generation, chemical industry). Different materials such ...
[EN] A dual-phase material with high ambipolar conductivity composed by the perovskite LaCo0.2Ni0.4Fe0.4O3-delta (LCNF) as the electronic phase and the fluorite Ce0.8Gd0.2O2-delta (CGO20) as oxide-ion conductor is proposed ...
García Fayos, Julio; Balaguer Ramírez, María; Serra Alfaro, José Manuel(Wiley-VCH Verlag, 2015-12-21)
[EN] Dual-phase membranes are appealing candidates for oxygen transport membranes owing to their unique combination of ambipolar electron-ion transport and endurance. However, O-2 separation in industrial environments ...
Gaudillere, Cyril Christian; García Fayos, Julio; Balaguer Ramírez, María; Serra Alfaro, José Manuel(Wiley-VCH Verlag, 2014-09)
Dual-phase oxygen-permeable asymmetric membranes with enhanced oxygen permeation were prepared by combining freeze-casting, screen-printing, and constraint-sintering techniques. The membranes were evaluated under oxyfuel ...
García-Fayos, Julio; Ruhl, R.; Navarrete Algaba, Laura; Bouwmeester, H.; Serra Alfaro, José Manuel(The Royal Society of Chemistry, 2018)
[EN] Fe2NiO4-Ce0.8Tb0.2O2-delta (NFO-CTO) composite membranes are of interest to separate oxygen from air. In this study, we investigate the influence of the catalytic activation of NFO-CTO membranes on the oxygen permeation ...
Gaudillere, Cyril Christian; García Fayos, Julio; Serra Alfaro, José Manuel(Royal Society of Chemistry, 2014)
[EN] Innovative asymmetric oxygen-transport membrane architectures were prepared by combining freeze-casting and film deposition techniques. Freeze-casting enabled to optimize the gas transport through the ...
Lobera González, Maria Pilar; Escolástico Rozalén, Sonia; García Fayos, Julio; Serra Alfaro, José Manuel(Wiley-VCH Verlag, 2012)
[EN] Process intensification by the integration of membranes and high-temperature reactors offers several advantages with regard to conventional process schemes, that is, energy saving, safe operation, reduced plant/unit ...
[EN] Ceria based materials are robust candidates for a range of applications involving redox reactions and high oxygen activity. The substitution of erbium in the ceria lattice introduces extrinsic oxygen vacancies. Further ...
Balaguer Ramírez, María; García Fayos, Julio; Solis Díaz, Cecilia; Serra Alfaro, José Manuel(American Chemical Society, 2013-12-24)
Composite membranes with enhanced oxygen permeability and unprecedented stability in oxyfuel-like gas environments are reported. Specifically, 60 vol% NiFe2O4 - 40 vol% Ce0.8Tb0.2O2-delta (NFO-CTO) composite has been ...
[EN] An original asymmetric tubular membrane for oxygen production applications was manufactured in a two-step process. A 3 mol% Y2O3 stabilized ZrO2 (3YSZ) porous tubular support was manufactured by the freeze-casting ...
[EN] The stability of dual-phase oxygen transport membranes consisting of 70 vol% (Y2O3)(0.01)(Sc2O3)(0.10)(ZrO2)(0.89) and 30 vol% MnCo2O4 (10Sc1YSZ-MCO (70-30 vol%)) was investigated in simulated oxy-fuel power plant ...
Gaudillere, Cyril Christian; García Fayos, Julio; Serra Alfaro, José Manuel(Wiley-VCH Verlag, 2014-12)
[EN] Catalytic activation of a highly porous La0.6Sr0.4Co0.2Fe0.8O3- (LSCF) freeze-cast asymmetric membrane has been realized by screen-printing a 30m thick LSCF porous layer over the dense top layer of the asymmetric ...
[EN] Oxygen Transport Membranes (OTMs) present a high potential for being considered in the integration of O-2 supply systems in oxyfuel installations, as well as for the conduction of chemical reactions when operating ...
Serra Alfaro, José Manuel; García Fayos, Julio; Baumann, S.; Schulze-Kueppers, F.; Meulenberg, W. A.(Elsevier, 2013-11-15)
[EN] One of the most promising materials for oxygen separation amongst ceramic oxygen transport membranes (OTMs) is La0.6Sr0.4Co0.2Fe0.8O3 (-delta) (LSCF) due to its relatively high oxygen permeability combined with high ...
García Fayos, Julio; Vert Belenguer, Vicente Bernardo; Balaguer Ramírez, María; Solis Díaz, Cecilia; Gaudillere, Cyril Christian; Serra Alfaro, José Manuel(Elsevier, 2015-10-15)
[EN] This contribution introduces how the integration of biomass as fuel in power plants would balance CO2 emissions and the related role of oxygen transport membranes (OTM) on it. CO2 capture techniques could be introduced ...